Camera optical lens

ABSTRACT

The present disclosure discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens, a fifth lens, and a sixth lens. The first lens is made of plastic material, the second lens is made of plastic material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, and the sixth lens is made of glass material. The camera optical lens further satisfies specific conditions.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority benefit of Chinese PatentApplications Ser. No. 201810065867.3 and Ser. No. 201810065864.X filedon Jan. 23, 2018, the entire content of which is incorporated herein byreference.

FIELD OF THE PRESENT DISCLOSURE

The present disclosure relates to optical lens, in particular to acamera optical lens suitable for handheld devices such as smart phonesand digital cameras and imaging devices.

DESCRIPTION OF RELATED ART

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but the photosensitivedevices of general camera lens are no other than Charge Coupled Device(CCD) or Complementary metal-Oxide Semiconductor Sensor (CMOS sensor),and as the progress of the semiconductor manufacturing technology makesthe pixel size of the photosensitive devices shrink, coupled with thecurrent development trend of electronic products being that theirfunctions should be better and their shape should be thin and small,miniature camera lens with good imaging quality therefor has become amainstream in the market. In order to obtain better imaging quality, thelens that is traditionally equipped in mobile phone cameras adopts athree-piece or four-piece lens structure. And, with the development oftechnology and the increase of the diverse demands of users, and underthis circumstances that the pixel area of photosensitive devices isshrinking steadily and the requirement of the system for the imagingquality is improving constantly, the five-piece, six-piece andseven-piece lens structure gradually appear in lens design. There is anurgent need for ultra-thin wide-angle camera lenses which have goodoptical characteristics and the chromatic aberration of which is fullycorrected.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the exemplary embodiments can be better understood withreference to the following drawings. The components in the drawing arenot necessarily drawn to scale, the emphasis instead being placed toupon clearly illustrating the principles of the present disclosure.

FIG. 1 is a schematic diagram of a camera optical lens in accordancewith a first embodiment of the present invention;

FIG. 2 shows the longitudinal aberration of the camera optical lensshown in FIG. 1;

FIG. 3 shows the lateral color of the camera optical lens shown in FIG.1;

FIG. 4 shows a schematic diagram of the field curvature and distortionof the camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a camera optical lens in accordancewith a second embodiment of the present invention;

FIG. 6 shows the longitudinal aberration of the camera optical lensshown in FIG. 5;

FIG. 7 shows the lateral color of the camera optical lens shown in FIG.5;

FIG. 8 shows the field curvature and distortion of the camera opticallens shown in FIG. 5:

FIG. 9 is a schematic diagram of a camera optical lens in accordancewith a third embodiment of the present invention;

FIG. 10 shows the longitudinal aberration of the camera optical lensshown in FIG. 9;

FIG. 11 shows the lateral color of the camera optical lens shown in FIG.9;

FIG. 12 shows the field curvature and distortion of the camera opticallens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure will hereinafter be described in detail withreference to several exemplary embodiments. To make the technicalproblems to be solved, technical solutions and beneficial effects of thepresent disclosure more apparent, the present disclosure is described infurther detail together with the figure and the embodiments. It shouldbe understood the specific embodiments described hereby is only toexplain the disclosure, not intended to limit the disclosure.

Embodiment 1

As referring to FIG. 1, the present invention provides a camera opticallens 10. FIG. 1 shows the camera optical lens 10 of embodiment 1 of thepresent invention, the camera optical lens 10 comprises 6 lenses.Specifically, from the object side to the image side, the camera opticallens 10 comprises in sequence: an aperture S1, a first lens L1, a secondlens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixthlens L6. Optical element like optical filter GF can be arranged betweenthe sixth lens L6 and the image surface Si.

The first lens L1 is made of plastic material, the second lens L2 ismade of plastic material, the third lens L3 is made of plastic material,the fourth lens L4 is made of plastic material, the fifth lens L5 ismade of plastic material, and the sixth lens L6 is made of glassmaterial.

In this embodiment, the second lens L2 has a positive refractive power.The third lens L3 has a negative refractive power.

Here, the focal length of the whole camera optical lens 10 is defined asf, the focal length of the first lens is defined as f1. The cameraoptical lens further satisfies the following condition: 4≤f1/f≤10, whichfixes the positive refractive power of the first lens L1. If the lowerlimit of the set value is exceeded, although it benefits the ultra-thindevelopment of lenses, but the positive refractive power of the firstlens L1 will be too strong, problem like aberration is difficult to becorrected, and it is also unfavorable for wide-angle development oflens. On the contrary, if the upper limit of the set value is exceeded,the positive refractive power of the first lens L becomes too weak, itis then difficult to develop ultra-thin lenses. Preferably, thefollowing condition shall be satisfied, 4.15≤f1/f≤9.5.

The refractive power of the sixth lens L6 is defined as n6. Here thefollowing condition should be satisfied: 1.7≤n6≤2.2. This conditionfixes the refractive index of the sixth lens L6, and when the value ofthe refractive index within this range benefits the ultra-thindevelopment of lenses, and it also benefits the correction ofaberration. Preferably, the following condition shall be satisfied,1.72≤n6≤2.15.

The thickness on-axis of the sixth lens 6 is defined as d11, and thetotal optical length of the camera optical lens 10 is defined as TTL.The following condition: 0.01≤d11/TTL≤0.2 should be satisfied. Thiscondition fixes the ratio between the thickness on-axis of the sixthlens L6 and the total optical length TTL. When the condition issatisfied, it is beneficial for realization of the ultra-thin lens.Preferably, the condition 0.009≤d11/TTL≤0.199 shall be satisfied.

When the focal length of the camera optical lens 10 of the presentinvention, the focal length of each lens, the refractive power of therelated lens, and the total optical length, the thickness on-axis andthe curvature radius of the camera optical lens satisfy the aboveconditions, the camera optical lens 10 has the advantage of highperformance and satisfies the design requirement of low TTL.

In this embodiment, the first lens L1 has a positive refractive powerwith a convex object side surface relative to the proximal axis and aconcave image side surface relative to the proximal axis.

The curvature radius of the object side surface of the first lens L1 isdefined as R1, the curvature radius of the image side surface of thefirst lens L1 is defined as R2. The camera optical lens 10 furthersatisfies the following condition: −20.95≤(R1+R2)/(R1−R2)≤−4.57, whichfixes the shape of the first lens L1, by which, the shape of the firstlens L1 can be reasonably controlled and it is effectively forcorrecting spherical aberration of the camera optical lens. Preferably,the condition −13.09≤(R1+R2)/(R1−R2)≤−5.71 shall be satisfied.

The thickness on-axis of the first lens L1 is defined as d1. Thefollowing condition: 0.11≤d1≤0.39 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.17≤d1≤0.31 shall besatisfied.

In this embodiment, the second lens L2 has a convex object side surfacerelative to the proximal axis and a concave image side surface relativeto the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the second lens L2 is f2. The following condition should besatisfied: 0.82≤f2/f≤2.52. When the condition is satisfied, the negativeoptical power of the second lens L2 is controlled within reasonablescope, the spherical aberration caused by the first lens L1 which haspositive optical power and the field curvature of the system then can bereasonably and effectively balanced. Preferably, the condition1.32≤f2/f≤2.01 should be satisfied.

The curvature radius of the object side surface of the second lens L2 isdefined as R3, the curvature radius of the image side surface of thesecond lens L2 is defined as R4. The following condition should besatisfied: −2.51≤(R3+R4)/(R3−R4)≤−0.81, which fixes the shape of thesecond lens L2, when the value is beyond this range, with thedevelopment into the direction of ultra-thin and wide-angle lenses,problem like aberration of the on-axis Chromatic aberration is difficultto be corrected. Preferably, the following condition shall be satisfied,−1.57≤(R3+R4)/(R3−R4)≤−1.01.

The thickness on-axis of the second lens L2 is defined as d3. Thefollowing condition: 0.32≤d3≤0.98 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.51≤d3≤0.79 shall besatisfied.

In this embodiment, the third lens L3 has a convex object side surfaceand a concave image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the third lens L3 is f3. The following condition should besatisfied: −7.51≤f3/f≤−1.97, by which the field curvature of the systemthen can be reasonably and effectively balanced. Preferably, thecondition −4.7≤f3/f≤−2.46 should be satisfied.

The curvature radius of the object side surface of the third lens L3 isdefined as R5, the curvature radius of the image side surface of thethird lens L3 is defined as R6. The following condition should besatisfied: 2.27≤(R5+R6)/(R5−R6)≤7.58, which is beneficial for theshaping of the third lens L3, and bad shaping and stress generation dueto extra-large curvature of surface of the third lens L3 can be avoided.Preferably, the following condition shall be satisfied,3.64≤(R5+R6)/(R5−R6)≤6.06.

The thickness on-axis of the third lens L3 is defined as d5. Thefollowing condition: 0.11≤d5≤0.36 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.18≤d5≤0.29 shall besatisfied.

In this embodiment, the fourth lens L4 has a positive refractive powerwith a convex object side surface and a convex image side surfacerelative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the fourth lens L4 is f4. The following condition should besatisfied: 1.25≤f4/f≤4.1, which can effectively reduce the sensitivityof lens group used in camera and further enhance the imaging quality.Preferably, the condition 1.99≤f4/f≤3.28 should be satisfied.

The curvature radius of the object side surface of the fourth lens L4 isdefined as R7, the curvature radius of the image side surface of thefourth lens L4 is defined as R8. The following condition should besatisfied: −1.51≤(R7+R8)/(R7−R8)≤−0.49, which fixes the shaping of thefourth lens L4. When beyond this range, with the development into thedirection of ultra-thin and wide-angle lenses, problem like aberrationof the off-axis picture angle is difficult to be corrected. Preferably,the following condition shall be satisfied, −0.94≤(R7+R8)/(R7−R8)≤−0.62.

The thickness on-axis of the fourth lens L4 is defined as d7. Thefollowing condition: 0.27≤d7≤0.83 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.42≤d7≤0.66 shall besatisfied.

In this embodiment, the fifth lens L5 has a negative refractive powerwith a concave image side surface and a convex image side surfacerelative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the fifth lens L5 is f5. The following condition should besatisfied: −10.98≤f5/f≤−1.82, which can effectively smooth the lightangles of the camera and reduce the tolerance sensitivity. Preferably,the condition −6.86≤f5/f≤−2.27 should be satisfied.

The curvature radius of the object side surface of the fifth lens L5 isdefined as R9, the curvature radius of the image side surface of thefifth lens L5 is defined as R10. The following condition should besatisfied: −9.41≤(R9+R10)/(R9−R10)≤−2.62, by which, the shape of thefifth lens L5 is fixed, when beyond this range, with the developmentinto the direction of ultra-thin and wide-angle lenses, problem likeaberration of the off-axis picture angle is difficult to be corrected.Preferably, the following condition shall be satisfied,−5.88≤(R9+R10)/(R9−R10)≤−3.28.

The thickness on-axis of the fifth lens L5 is defined as d9. Thefollowing condition: 0.22≤d9≤0.69 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.35≤d9≤0.55 shall besatisfied.

In this embodiment, the sixth lens L6 has a positive refractive powerwith a convex object side surface and a concave image side surfacerelative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the sixth lens L6 is f6. The following condition should besatisfied: 1.57≤f6/f≤8.68, which can effectively reduce the sensitivityof lens group used in camera and further enhance the imaging quality.Preferably, the condition 2.51≤f6/f≤6.95 should be satisfied.

The curvature radius of the object side surface of the sixth lens L6 isdefined as R11, the curvature radius of the image side surface of thesixth lens L6 is defined as R12. The following condition should besatisfied: 4.88≤(R11+R12)/(R11−R12)≤20.05, by which, the shape of thesixth lens L6 is fixed, When beyond this range, with the developmentinto the direction of ultra-thin and wide-angle lenses, problem likeaberration of the off-axis picture angle is difficult to be corrected.Preferably, the following condition shall be satisfied,7.8≤(R11+R12)/(R11−R12)≤16.04.

The thickness on-axis of the sixth lens L6 is defined as d11. Thefollowing condition: 0.46≤d11≤1.49 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.74≤d11≤1.19 shall besatisfied.

The focal length of the whole camera optical lens 10 is f, the combinedfocal length of the first lens L1 and the second lens L2 is f12. Thefollowing condition should be satisfied: 0.62≤f12/f≤2.14, which caneffectively avoid the aberration and field curvature of the cameraoptical lens, and can suppress the rear focal length for realizing theultra-thin lens. Preferably, the condition 0.98≤f12/f≤1.71 should besatisfied.

In this embodiment, the total optical length TTL of the camera opticallens 10 is less than or equal to 5.76 mm, it is beneficial for therealization of ultra-thin lenses. Preferably, the total optical lengthTTL of the camera optical lens 10 is less than or equal to 5.49 mm.

In this embodiment, the aperture F number of the camera optical lens isless than or equal to 2.06. A large aperture has better imagingperformance. Preferably, the aperture F number of the camera opticallens 10 is less than or equal to 2.02.

With such design, the total optical length TTL of the whole cameraoptical lens 10 can be made as short as possible, thus theminiaturization characteristics can be maintained.

In the following, an example will be used to describe the camera opticallens 10 of the present invention. The symbols recorded in each exampleare as follows. The unit of distance, radius and center thickness is mm.

TTL: Optical length (the distance on-axis from the object side surfaceof the first lens L1 to the image surface).

Preferably, inflexion points and/or arrest points can also be arrangedon the object side surface and/or image side surface of the lens, sothat the demand for high quality imaging can be satisfied, thedescription below can be referred for specific implementable scheme.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the following, the unitof the focal length, distance, radius and center thickness is mm.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the tables 1 and 2.

TABLE 1 R d nd v d S1 ∞ d0= −0.120 R1 2.508 d1= 0.241 nd1 1.5637 v 147.40 R2 3.365 d2= 0.051 R3 3.083 d3= 0.640 nd2 1.5620 v 2 70.00 R427.073 d4= 0.062 R5 3.787 d5= 0.227 nd3 1.6594 v 3 23.50 R6 2.421 d6=0.184 R7 5.750 d7= 0.532 nd4 1.5479 v 4 70.00 R8 −38.786 d8= 0.462 R9−3.838 d9= 0.453 nd5 1.6583 v 5 55.69 R10 −6.384 d10= 0.083 R11 1.644d11= 0.965 nd6 1.7332 v 6 52.47 R12 1.381 d12= 0.478 R13 ∞ d13= 0.210ndg 1.5168 v g 64.17 R14 ∞ d14= 0.472

Where:

In which, the meaning of the various symbols is as follows.

S1: Aperture;

R: The curvature radius of the optical surface, the central curvatureradius in case of lens;

R1: The curvature radius of the object side surface of the first lensL1;

R2: The curvature radius of the image side surface of the first lens L1;

R3: The curvature radius of the object side surface of the second lensL2;

R4: The curvature radius of the image side surface of the second lensL2;

R5: The curvature radius of the object side surface of the third lensL3;

R6: The curvature radius of the image side surface of the third lens L3;

R7: The curvature radius of the object side surface of the fourth lensL4;

R8: The curvature radius of the image side surface of the fourth lensL4;

R9: The curvature radius of the object side surface of the fifth lensL5;

R10: The curvature radius of the image side surface of the fifth lensL5;

R11: The curvature radius of the object side surface of the sixth lensL6;

R12: The curvature radius of the image side surface of the sixth lensL6;

R13: The curvature radius of the object side surface of the opticalfilter GF;

R14: The curvature radius of the image side surface of the opticalfilter GF;

d: The thickness on-axis of the lens and the distance on-axis betweenthe lens;

d0: The distance on-axis from aperture S1 to the object side surface ofthe first lens L1;

d1: The thickness on-axis of the first lens L1;

d2: The distance on-axis from the image side surface of the first lensL1 to the object side surface of the second lens L2;

d3: The thickness on-axis of the second lens L2;

d4: The distance on-axis from the image side surface of the second lensL2 to the object side surface of the third lens L3;

d5: The thickness on-axis of the third lens L3;

d6: The distance on-axis from the image side surface of the third lensL3 to the object side surface of the fourth lens L4;

d7: The thickness on-axis of the fourth lens L4;

d8: The distance on-axis from the image side surface of the fourth lensL4 to the object side surface of the fifth lens L5;

d9: The thickness on-axis of the fifth lens L5;

d10: The distance on-axis from the image side surface of the fifth lensL5 to the object side surface of the sixth lens L6;

d11: The thickness on-axis of the sixth lens L6;

d12: The distance on-axis from the image side surface of the sixth lensL6 to the object side surface of the optical filter GF;

d13: The thickness on-axis of the optical filter GF;

d14: The distance on-axis from the image side surface to the imagesurface of the optical filter GF;

nd: The refractive index of the d line;

nd1: The refractive index of the d line of the first lens L1;

nd2: The refractive index of the d line of the second lens L2;

nd3: The refractive index of the d line of the third lens L3;

nd4: The refractive index of the d line of the fourth lens L4;

nd5: The refractive index of the d line of the fifth lens L5;

nd6: The refractive index of the d line of the sixth lens L6;

ndg: The refractive index of the d line of the optical filter GF;

vd: The abbe number;

v1: The abbe number of the first lens L1;

v2: The abbe number of the second lens L2;

v3: The abbe number of the third lens L3;

v4: The abbe number of the fourth lens L4;

v5: The abbe number of the fifth lens L5;

v6: The abbe number of the sixth lens L6;

vg: The abbe number of the optical filter GF.

Table 2 shows the aspherical surface data of the camera optical lens inthe embodiment 1 of the present invention.

TABLE 2 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −2.5451E−01 −0.024011522 −0.011983676 −0.013651532 0.0288323840.000928073 −0.005937626 −1.08E−02 R2  4.0562E+00 −0.016513119−0.061642031 0.043169559 0.015171841 −0.025138313 −0.0322216180.008162456 R3  6.9074E+00 0.006959994 −0.058958736 −0.0412259650.023709119 −0.007900665 0.012692363 −0.061588381 R4 −2.4929E+03−0.069369231 0.022028874 −0.13131267 0.059302522 0.009464364−0.013875917 0.000271313 R5 −8.9493E+00 −0.1490426 0.031065509−0.025922534 −0.032706047 0.083905269 −0.033523736 0.001004865 R6−9.5507E+00 −0.019510518 0.035092015 −0.13457441 0.20279574 −0.122996760.033386029 −0.004255623 R7 −3.7371E+01 0.006107625 −0.0142668330.066758672 −0.055905598 −0.002534273  2.49E−02 −9.03E−03 R8  7.7212E+02−0.019105771 −0.080594128 0.12576595 −0.096663828 0.042860242 −6.48E−03−2.67E−04 R9 −7.7309E+01 0.14287852 −0.29562355 0.39374745 −0.438469933.05E−01 −1.16E−01  1.78E−02 R10 −4.7333E+00 −0.094200492 0.21119092−0.26282562 1.74E−01 −6.52E−02   1.27E−02 −9.78E−04 R11 −1.1784E+01−0.094200492 0.030885137 −0.003190523 4.97139E−05   4.20808E−05   1.51E−06 −9.97E−07 R12 −5.6793E+00 −0.13769629 0.015909245 −0.0026846971.83E−04 2.80E−06 −6.45E−07 −3.27E−09

Among them, K is a conic index, A4, A6, A8, A10, A12, A14, A16 areaspheric surface indexes.

IH: Image heighty=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x+A6x ⁶ +A ⁸ ++A10x ¹⁰ +A12x¹² s+A14x ¹⁴ +A16x ¹⁶  (1)

For convenience, the aspheric surface of each lens surface uses theaspheric surfaces shown in the above condition (1). However, the presentinvention is not limited to the aspherical polynomials form shown in thecondition (1).

Table 3 and table 4 show the inflexion points and the arrest pointdesign data of the camera optical lens 10 lens in embodiment 1 of thepresent invention. In which, PIR1 and PIR2 represent respectively theobject side surface and image side surface of the first lens L1, P2R1and P2R2 represent respectively the object side surface and image sidesurface of the second lens L2, P3R1 and P3R2 represent respectively theobject side surface and image side surface of the third lens L3, P4R1and P4R2 represent respectively the object side surface and image sidesurface of the fourth lens L4, P5R1 and P5R2 represent respectively theobject side surface and image side surface of the fifth lens L5, P6R1and P6R2 represent respectively the object side surface and image sidesurface of the sixth lens L6. The data in the column named “inflexionpoint position” are the vertical distances from the inflexion pointsarranged on each lens surface to the optic axis of the camera opticallens 10. The data in the column named “arrest point position” are thevertical distances from the arrest points arranged on each lens surfaceto the optic axis of the camera optical lens 10.

TABLE 3 Inflexion Inflexion point Inflexion point Inflexion point pointnumber position 1 position 2 position 3 P1R1 1 0.875 P1R2 1 0.755 P2R1 10.725 P2R2 1 0.195 P3R1 3 0.375 0.995 1.195 P3R2 1 1.125 P4R1 1 1.175P4R2 1 0.995 P5R1 2 0.385 0.575 P5R2 1 1.635 P6R1 2 0.435 1.745 P6R2 10.655

TABLE 4 Arrest Arrest point Arrest point point number position 1position 2 P1R1 0 P1R2 1 0.955 P2R1 1 0.925 P2R2 1 0.335 1.115 P3R1 10.655 1.085 P3R2 1 1.275 P4R1 1 1.285 P4R2 1 1.195 P5R1 0 P5R2 0 P6R1 10.845 P6R2 1 1.505

FIG. 2 and FIG. 3 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 486.1 nm, 587.6 nmand 656.3 nm passes the camera optical lens 10 in the first embodiment.FIG. 4 shows the field curvature and distortion schematic diagrams afterlight with a wavelength of 587.6 nm passes the camera optical lens 10 inthe first embodiment, the field curvature S in FIG. 4 is a fieldcurvature in the sagittal direction, T is a field curvature in themeridian direction.

Table 13 shows the various values of the embodiments 1, 2, 3, and thevalues corresponding with the parameters which are already specified inthe conditions.

As shown in Table 13, the first embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.843 mm, the full vision field image height is 3.512 mm, thevision field angle in the diagonal direction is 87.24°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

Embodiment 2

Embodiment 2 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

Table 5 and table 6 show the design data of the camera optical lens inembodiment 2 of the present invention.

TABLE 5 R d nd v d S1 ∞ d0= −0.118 R1 2.521 d1= 0.259 nd1 1.5421 v 129.32 R2 3.357 d2= 0.071 R3 3.075 d3= 0.656 nd2 1.5506 v 2 66.68 R427.981 d4= 0.066 R5 3.765 d5= 0.242 nd3 1.6062 v 3 23.50 R6 2.452 d6=0.179 R7 5.961 d7= 0.553 nd4 1.5173 v 4 70.05 R8 −42.267 d8= 0.531 R9−3.775 d9= 0.459 nd5 2.0120 v 5 70.05 R10 −6.350 d10= 0.093 R11 1.656d11= 0.926 nd6 2.0931 v 6 64.54 R12 1.348012 d12= 0.497 R13 ∞ d13= 0.210ndg 1.5168 v g 64.17 R14 ∞ d14= 0.491

Table 6 shows the aspherical surface data of each lens of the cameraoptical lens 20 in embodiment 2 of the present invention.

TABLE 6 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −6.0163E−01 −0.028995154 −0.01043708 −0.011892808 0.0301152080.002010298 −0.004901857 −1.04E−02 R2  4.2216E+00 −0.016076209−0.064151593 0.043033453 0.015864853 −0.024522037 −0.0321205430.007924706 R3  6.9194E+00 0.007190202 −0.055326519 −0.0418408810.020906941 −0.01006856 0.01030812 −0.065152251  R4 −8.4414E+02−0.064064932 0.022978959 −0.13319502 0.05899504 0.009249691 −0.014084563 5.63E−04 R5 −9.3800E+00 −0.14886841 0.031041985 −0.025324351−0.03244486 0.084204415 −0.033413801 0.001044876 R6 −1.0276E+01−0.02020236 0.035404505 −0.13480449 0.20276398 −0.12299447 0.033452626−0.004205375  R7 −3.6267E+01 0.008027473 −0.012715316 0.067352467−0.055904946 −0.002713083 0.024789631 −9.06E−03 R8  7.3403E+02−0.019734826 −0.081368957 0.12501153 −0.096983265 0.042805321−0.006488875 −2.58E−04 R9 −7.8339E+01 0.14742664 −0.29512786 0.39482505−0.43867585 0.3048878 −1.16E−01 0.017907436 R10 −2.7296E+00 −0.0952217270.21070371 −0.26284958 0.1743243 −0.065234599 0.012688444 −9.79E−04 R11−1.2125E+01 −0.095221727 0.030865793 −0.00319606 4.90822E−05 4.14474E−051.39163E−06  −1.01E−06 R12 −7.1092E+00 −0.13699984 0.015882362−0.00268205   1.84E−04   2.87E−06 −6.17E−07 −1.41E−09

Table 7 and table 8 show the inflexion points and the arrest pointdesign data of the camera optical lens 20 lens in embodiment 2 of thepresent invention.

TABLE 7 Inflexion Inflexion point Inflexion point Inflexion point pointnumber position 1 position 2 position 3 P1R1 1 0.905 P1R2 1 0.755 P2R1 10.725 P2R2 1 0.215 P3R1 3 0.375 0.985 1.215 P3R2 1 1.135 P4R1 1 1.165P4R2 1 1.015 P5R1 3 0.365 0.615 1.425 P5R2 1 1.635 P6R1 3 0.425 1.7652.125 P6R2 1 0.605

TABLE 8 Arrest Arrest point Arrest point Arrest point point numberposition 1 position 2 position 3 P1R1 0 P1R2 1 0.955 P2R1 1 0.915 P2R2 10.365 P3R1 3 0.655 1.165 1.245 P3R2 1 1.285 P4R1 1 1.285 P4R2 1 1.225P5R1 0 P5R2 0 P6R1 1 0.845 P6R2 1 1.405

FIG. 6 and FIG. 7 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 486.1 nm, 587.6 nmand 656.3 nm passes the camera optical lens 20 in the second embodiment.FIG. 8 shows the field curvature and distortion schematic diagrams afterlight with a wavelength of 586.7 nm passes the camera optical lens 20 inthe second embodiment.

As shown in Table 13, the second embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.852 mm, the full vision field image height is 3.512 mm, thevision field angle in the diagonal direction is 86.94°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

Embodiment 3

Embodiment 3 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

Table 9 and table 10 show the design data of the camera optical lens inembodiment 3 of the present invention.

TABLE 9 R d nd v d S1 ∞ d0= −0.090 R1 2.704 d1= 0.218 nd1 1.4488 v 121.00 R2 3.275 d2= 0.046 R3 3.033 d3= 0.643 nd2 1.5874 v 2 70.01 R431.458 d4= 0.062 R5 3.580 d5= 0.236 nd3 1.6077 v 3 23.50 R6 2.397 d6=0.184 R7 5.605 d7= 0.531 nd4 1.5641 v 4 70.01 R8 −38.912 d8= 0.466 R9−3.914 d9= 0.439 nd5 1.6445 v 5 69.98 R10 −6.026 d10= 0.064 R11 1.626d11= 0.991 nd6 1.7456 v 6 48.80 R12 1.39987 d12= 0.446 R13 ∞ d13= 0.210ndg 1.5168 v g 64.17 R14 ∞ d14= 0.440

Table 10 shows the aspherical surface data of each lens of the cameraoptical lens 30 in embodiment 3 of the present invention.

TABLE 10 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −3.6497E−01 −0.024743691 −0.012928122 −0.014980373 0.0284557050.000978311 −0.005709827 −9.55E−03 R2  4.2025E+00 −0.015397916−0.058944764 0.044458903 0.014877694 −0.026115954 −0.033352927 0.006196818 R3  6.9741E+00 0.006033963 −0.061940846 −0.0450384760.020760614 −0.009836571 0.012275718 −0.060880226 R4 −2.7652E+03−0.06985819 0.020484727 −0.13007083 0.059681198 0.009349985 −0.0140346716.58267E−05   R5 −8.6107E+00 −0.1466203 0.031644209 −0.025691915−0.032568269 0.08409692 −0.033398327  0.001047595 R6 −9.8709E+00−0.019591532 0.034740512 −0.13485187 0.20269928 −0.12306671 0.033360742−0.004263775 R7 −3.7711E+01 0.006296456 −0.014189306 0.06668201−0.055965138 −0.002574349 0.024855178 −0.009029653 R8  7.6730E+02−0.019302827 −0.080596213 0.12579222 −0.096596547 0.042979397−0.006458153 −2.55E−04 R9 −8.0213E+01 0.14758272 −0.29493145 0.39400252−0.43825368 0.30514194 −1.16E−01  1.78E−02 R10 −4.3660E+00 −0.0943356490.21123286 −0.26282808 0.17431363 −0.065245063 0.012688608 −9.78E−04 R11−1.1660E+01 −0.094335649 0.030858742 −0.003191936 4.93279E−05 4.2073E−051.50117E−06  −9.87E−07 R12 −5.9357E+00 −0.13767923 0.015937005−0.002679073   1.84E−04  2.82E−06 −6.49E−07 −4.31E−09

Table 11 and table 12 show the inflexion points and the arrest pointdesign data of the camera optical lens 30 lens in embodiment 3 of thepresent invention.

TABLE 11 Inflexion Inflexion point Inflexion point Inflexion point pointnumber position 1 position 2 position 3 P1R1 1 0.855 P1R2 1 0.775 P2R1 10.715 P2R2 1 0.185 P3R1 3 0.395 0.975 1.215 P3R2 1 1.115 P4R1 1 1.165P4R2 1 0.985 P5R1 2 0.365 0.615 P5R2 1 1.635 P6R1 3 0.435 1.755 2.175P6R2 1 0.645

TABLE 12 Arrest Arrest point Arrest point point number position 1position 2 P1R1 0 P1R2 1 0.965 P2R1 1 0.915 P2R2 1 0.315 P3R1 2 0.6751.155 P3R2 1 1.265 P4R1 1 1.285 P4R2 1 1.185 P5R1 0 P5R2 0 P6R1 1 0.855P6R2 1 1.485

FIG. 10 and FIG. 11 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 486.1 nm, 587.6 nmand 656.3 nm passes the camera optical lens 30 in the third embodiment.FIG. 12 shows the field curvature and distortion schematic diagramsafter light with a wavelength of 587.6 nm passes the camera optical lens30 in the third embodiment.

As shown in Table 13, the third embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.718 mm, the full vision field image height is 3.512 mm, thevision field angle in the diagonal direction is 91.25°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

TABLE 13 Embodiment Embodiment Embodiment 1 2 3 f 3.685 3.705 3.436 f115.869 16.833 30.915 f2 6.133 6.216 5.667 f3 −10.899 −12.466 −12.911 f49.179 10.139 8.722 f5 −15.725 −10.105 −18.857 f6 21.332 11.637 15.524f12 4.537 4.667 4.893 (R1 + R2)/(R1 − R2) −6.856 −7.029 −10.475 (R3 +R4)/(R3 − R4) −1.257 −1.247 −1.213 (R5 + R6)/(R5 − R6) 4.545 4.735 5.053(R7 + R8)/(R7 − R8) −0.742 −0.753 −0.748 (R9 + R10)/(R9 − R10) −4.014−3.932 −4.705 (R11 + R12)/(R11 − R12) 11.500 9.755 13.364 f1/f 4.3064.543 8.997 f2/f 1.664 1.678 1.649 f3/f −2.958 −3.365 −3.757 f4/f 2.4912.736 2.538 f5/f −4.267 −2.728 −5.488 f6/f 5.789 3.141 4.518 f12/f 1.2311.260 1.424 d1 0.241 0.259 0.218 d3 0.640 0.656 0.643 d5 0.227 0.2420.236 d7 0.532 0.553 0.531 d9 0.453 0.459 0.439 d11 0.965 0.926 0.991Fno 2.000 2.000 2.000 TTL 5.059 5.232 4.976 d1/TTL 0.048 0.050 0.044d3/TTL 0.127 0.125 0.129 d5/TTL 0.045 0.046 0.048 d7/TTL 0.105 0.1060.107 d9/TTL 0.090 0.088 0.088 d11/TTL 0.191 0.177 0.199 n1 1.56371.5421 1.4488 n2 1.5620 1.5506 1.5874 n3 1.6594 1.6062 1.6077 n4 1.54791.5173 1.5641 n5 1.6583 2.0120 1.6445 n6 1.7332 2.0931 1.7456 v1 47.397129.3208 21.0000 v2 70.0001 66.6766 70.0137 v3 23.5000 23.5000 23.5000 v470.0001 70.0470 70.0137 v5 55.6921 70.0470 69.9811 v6 52.4701 64.544448.7950

It is to be understood, however, that even though numerouscharacteristics and advantages of the present exemplary embodiments havebeen set forth in the foregoing description, together with details ofthe structures and functions of the embodiments, the disclosure isillustrative only, and changes may be made in detail, especially inmatters of shape, size, and arrangement of parts within the principlesof the invention to the full extent indicated by the broad generalmeaning of the terms where the appended claims are expressed.

What is claimed is:
 1. A camera optical lens comprising, from an objectside to an image side in sequence: a first lens, a second lens having apositive refractive power, a third lens having a negative refractivepower, a fourth lens, a fifth lens, and a sixth lens; wherein the cameraoptical lens further satisfies the following conditions:4≤f1/f≤10;1.7≤n6≤2.2;1.7≤d11/TTL≤2.2; where f: the focal length of the camera optical lenswith the camera optical lens being a fixed focal length lens; f1: thefocal length of the first lens; n6: the refractive index of the sixthlens; d11: the thickness on-axis of the sixth lens; TTL: the totaloptical length from the most object side surface of the first lens to animage plane of the camera optical lens.
 2. The camera optical lens asdescribed in claim 1, wherein the first lens is made of plasticmaterial, the second lens is made of plastic material, the third lens ismade of plastic material, the fourth lens is made of plastic material,the fifth lens is made of plastic material, the sixth lens is made ofglass material.
 3. The camera optical lens as described in claim 1further satisfying the following conditions:4.15≤f1/f≤9.5;1.72≤n3≤2.15;0.009≤d5/TTL≤0.199; Where d5: the thickness on-axis of the third lens.4. The camera optical lens as described in claim 1, wherein first lenshas a positive refractive power with a convex object side surfaceadjacent the optical axis and a concave image side surface adjacent theoptical axis; the camera optical lens further satisfies the followingconditions:−20.95≤(R1+R2)/(R1−R2)≤−4.57; 0.11 mm≤d1≤0.39 mm; where R1: thecurvature radius of object side surface of the first lens; R2: thecurvature radius of image side surface of the first lens d1: thethickness on-axis of the first lens.
 5. The camera optical lens asdescribed in claim 4 further satisfying the following conditions:−13.09≤(R1+R2)/(R1−R2)≤−5.71;0.17 mm≤d1≤0.31 mm.
 6. The camera optical lens as described in claim 1,wherein the second lens has a convex object side surface and a concaveimage side surface; the camera optical lens further satisfies thefollowing conditions:0.82≤f2/f≤2.52;−2.51≤(R3+R4)/(R3−R4)≤−0.81;0.32 mm≤d3≤0.98 mm; where: f: the focal length of the camera opticallens with the camera optical lens being a fixed focal length lens; f2:the focal length of the second lens; R3: the curvature radius of theobject side surface of the second lens; R4: the curvature radius of theimage side surface of the second lens; d3: the thickness on-axis of thesecond lens.
 7. The camera optical lens as described in claim 6 furthersatisfying the following conditions:1.32≤f2/f≤2.01;−1.57≤(R3+R4)/(R3−R4)≤−1.01;0.51 mm≤d3≤0.79 mm.
 8. The camera optical lens as described in claim 1,wherein the third lens has a convex object side surface adjacent theoptical axis and a concave image side surface adjacent the optical axis;the camera optical lens further satisfies the following conditions:−7.51≤f3/f←1.97;2.27≤(R5+R6)/(R5−R6)≤7.58;0.11 mm≤d5≤0.36 mm; where f: the focal length of the camera optical lenswith the camera optical lens being a fixed focal length lens; f3: thefocal length of the third lens; R5: the curvature radius of the objectside surface of the third lens; R6: the curvature radius of the imageside surface of the third lens; d5: the thickness on-axis of the thirdlens.
 9. The camera optical lens as described in claim 8 furthersatisfying the following conditions:−4.7≤f3/f≤−2.46;3.64≤(R5+R6)/(R5−R6)≤6.06;0.18 mm≤d5≤0.29 mm.
 10. The camera optical lens as described in claim 1,wherein the fourth lens has a positive refractive power with a convexobject side surface adjacent the optical axis and a concave image sidesurface adjacent the optical axis; the camera optical lens furthersatisfies the following conditions:1.25≤f4/f≤4.1;−1.51≤(R7+R8)/(R7−R8)≤−0.49;0.27 mm≤d7≤0.83 mm; where f: the focal length of the camera optical lenswith the camera optical lens being a fixed focal length lens; f4: thefocal length of the fourth lens; R7: the curvature radius of the objectside surface of the fourth lens; R8: the curvature radius of the imageside surface of the fourth lens; d7: the thickness on-axis of the fourthlens.
 11. The camera optical lens as described in claim 10 furthersatisfying the following conditions:1.99≤f4/f≤3.28;−0.94≤(R7+R8)/(R7−R8)≤−0.62;0.42 mm≤d7≤0.66 mm.
 12. The camera optical lens as described in claim 1,wherein the fifth lens has a negative refractive power with a concaveobject side surface adjacent the optical axis and a convex image sidesurface adjacent the optical axis; the camera optical lens furthersatisfies the following conditions:−10.98≤f5/f≤−1.82;−9.41≤(R9+R10)/(R9−R10)≤−2.62;0.22 mm≤d9≤0.69 mm; where f: the focal length of the camera optical lenswith the camera optical lens being a fixed focal length lens; f5: thefocal length of the fifth lens; R9: the curvature radius of the objectside surface of the fifth lens; R10: the curvature radius of the imageside surface of the fifth lens; d9: the thickness on-axis of the fifthlens.
 13. The camera optical lens as described in claim 12 furthersatisfying the following conditions:−6.86≤f5/f≤−2.27;−5.88≤(R9+R10)/(R9−R10)≤−3.28;0.35 mm≤d9≤0.55 mm.
 14. The camera optical lens as described in claim 1,wherein the sixth lens has a positive refractive power with a convexobject side surface adjacent the optical axis and a concave image sidesurface adjacent the optical axis; the camera optical lens furthersatisfies the following conditions:1.57≤f6/f≤8.68;4.88≤(R11+R12)/(R11−R12)≤20.05;0.46 mm≤d11≤1.49 mm; where f: the focal length of the camera opticallens with the camera optical lens being a fixed focal length lens; f6:the focal length of the sixth lens; R11: the curvature radius of theobject side surface of the sixth lens; R12: the curvature radius of theimage side surface of the sixth lens; d11: the thickness on-axis of thesixth lens.
 15. The camera optical lens as described in claim 14 furthersatisfying the following conditions:2 0.51≤f6/f≤6.95;7.8≤(R11+R12)/(R11−R12)≤16.04;0.74 mm≤d11≤1.19 mm.
 16. The camera optical lens as described in claim1, wherein there are no intervening lenses between the first lens andthe second lens, further satisfying the following condition:0.62≤f12/f≤2.14; where f12: the combined focal length of the first lensand the second lens; f: the focal length of the camera optical lens withthe camera optical lens being a fixed focal length lens.
 17. The cameraoptical lens as described in claim 16 further satisfying the followingcondition:0.98≤f12/f≤1.71.
 18. The camera optical lens as described in claim 1,wherein the total optical length TTL of the camera optical lens is lessthan or equal to 5.76 mm.
 19. The camera optical lens as described inclaim 18, wherein the total optical length TTL of the camera opticallens is less than or equal to 5.49 mm.
 20. The camera optical lens asdescribed in claim 1, wherein the aperture F number of the cameraoptical lens is less than or equal to 2.06.
 21. The camera optical lensas described in claim 20, wherein the aperture F number of the cameraoptical lens is less than or equal to 2.02.